Science Topics term usage 2008-01-08

This analysis excludes the activity of search-engine spiders, USGS users, and transactions resulting in errors.

(Table shows only the 40 most frequently chosen terms.)

63	geographic information systems (GIS)
61	earthquakes
49	volcanoes
38	river systems
32	controlled flooding
25	acid deposition
23	climate change
23	floods
23	earth structure
17	drainage basins
17	endangered species
17	animals
16	contamination and pollution
16	water quality
15	real-time monitoring and reporting
15	human impacts
14	tsunamis
13	invasive species
13	erosion
13	earthquake occurrences
13	ground-water flow
12	tectonic processes
12	health and disease
12	surface water (non-marine)
12	hurricanes
11	aquatic ecosystems
11	rocks and deposits
11	plants (organisms)
11	streamflow
11	global warming
11	ground water
10	mineral resources
10	global change
10	oil resources
10	toxic trace element contamination
9	precipitation (atmospheric)
9	water properties
9	soil resources
9	landslides
8	water supply and demand

Science Topics term usage Tuesday, 2008-01-08